20
APV_SWmini4_GB-2_042020.indd
Single Seat and Change-over Valve
DELTA SWmini4
Instruction manual: GB – rev. 2
GB
APV
13. Service Instructions - Change-over valve
13.3. Installation of wear parts
1.
Insert the guide bush (8) into the yoke (9). Insert the shaft seal (6)
and press in the slightly greased seat seal (7). See to the correct
mounting direction.
2.
Slightly grease the housing seals (5) and insert them into the groove
of the yoke (9) and of the upper housing (2).
3.
Install the seat seal (3) by means of the assembly tool (see item
15.) in the valve shaft (4).
4.
Place the washer (11) in the yoke (9). Mount the yoke at the
actuator (13).
5.
Press the yoke with actuator in the upper housing (2).
Attention!
Do not damage the housing seal (5).
Observe bore positions of housing and yoke.
6.
Slide the valve shaft (4) through the housing (2), yoke (9) and
actuator (13), place the centering washer (15) and tighten it with the
safety nut (16). Hold up the centering washer during this process.
7.
Insert the o-ring (20) in the actuator cover.
8.
Fasten the covering cap (17).
Valve design with proximity switch holder:
Fasten actuator screw (19) and proximity switch holder (18).
-
Valve design with control unit:
Fasten control unit (without cover).
Fasten guide rod extension (24) and actuator screw.
Tighten the cover
13.4. Assembly of valve
1.
Carefully place the valve insert in the housing (1). Check the correct
fit of the seal of the clamp or flange connection at the upper housing
during
this
process.
Attention!
The housing seal (5) must not be damaged during
this
process.
2.
Slightly screw the hex. screws (14) M5x40 in the threaded bores (do
not tighten).
3.
Connect compressed air supply.
4. Valve design NC:
Control actuator with air.
Do not reach for movable valve parts!
Risk of injury by sudden valve actuation.
5.
Tighten the hex. screws (14).
6.
Disconnect pneumatic air.
7.
Firmly tighten clamp and flange connections.
8.
Connect
electric
connections.
Plug proximity switches in their holders and fasten them.
9.
Valve design with steam chamber: Connect parts.
yoke
11
14
10
8
6
5
1
5
5
9
13
20
15
16
17
4
7
